Monocyclic system of electric distribution.



No. 888,362. PATENTED MAY-19,1908. G, P. STEINMETZU MONUGYGLIU SYSTEM OL -ELECTRIC DISTRIBUTIOEF.

APPLICATION FILED MAR.30, 11195.

WUNEjfiEj- INVENT u UNITED STATES PATENT @li li liCE.

CHARLES P. STEINMETZ, OF SOHENECTADY, NEW YORK, ASSIGNOR 'IO GENERAL ELECTRIC COMPANY, ACORPORATEON OF NEW YORK.

MONOCYGLIC SYSTEM OF ELZEGTRIC DISTRIB'UTIQN.

Specification or! Letters Patent.

' Patented May 19, 1908.

Application filed March 36, 1895. Serial No. 543,809

To aZLwhom it may concern:

Be it known that I, CHARLES P. S'rniminra,

' a subject of the Em arc! of Germany,

ing at Schenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Monocyclic Systems of Electric Distribution, of which the following is a specification.

My invention relates to systems of electric generation and distribution, now known in the art as monocyclic, such as that described in my patent No. 533,244, dated Jan. 29, 1895, andin other patents granted to me and has for its main object to provide a means of. so reconstructing existing alternating current plants of the single phase type, that they may be adapted, at a minimum of expense and with the greatest utilization of their existing structure, to the generation of monocyclic currents and to supply power to motors of the monocyclic or of the three phase type.

M invention is also a licable however P i ,v

displacement of phase, and consequently any effect desired by the engineer. I have preferred to illustrate in this case a motor 1- orator as theparti'cular type of auxiliary n a chine desired; and I have also illustrated this machine supplying from one side of its armature winding a continuous current exciting the field-magn'ets of themain alternator, and also its own field-magnets This particular combination is of value, and I desire to be understood as claiming it, but the claims which I have made to the auxiliary machine are generic and I do not mean to be limited to this special t ,pe.

It is mani 'est that it is immaterial how the particular machine is driven, except that it must be synchronously driven. I have shown it as driven by a direct electrical conever, be connected in any way so as to be This machine is so arranged that its driven synchronously, by connecting'it by an inductive co nection, as by the interposition of suitable sformers, or in any 0 ier way.

, have also shown the machine co ected o the mains by transformation or an induc-- ac tive connection, but this is immaterial, a

it may be directly connected if desired.

The accomoanying drawing shows a diagrammatic embodiment of my invention. lherein A is the armature oi the main alternating current machine F is the iieldanagnet;

B, B are the collectin rings 3 C is the primary coilof the transformer I) of which d, d are the secondaries and a, b, care the mains or leads.

T he mains a, b carry the ordinary single phase current, being connected to the ends respectively of the coils t, all, while the main c is the main of displaced electro-motive force.

p I is the motor gene "iii-or to which I have referred in my statement of invention. It

is connected to the collector rings, or to mains extending from them, by the leads e,f going to collector rings upon the armature oi" the motor generator. This motor-genso orator is furnished with a commutator H, with the usual. brushes bearing thereon, and by suitable connections i *da continuous current to the iield iuagnet l? of the main alternator and to its owniiold-magnet l e5 resistances It, it" being included in the circuits to regulate the output in the usual We The machine is supplied with four collecting rings, and as illustrated has an ordinary ring winding, for which any other suitable 9Q winding may be substituted; as already described,

two of the collecting rings connect with the main alternator; the other two connect by leads 9, 7;, with the primary G of a transformer, the secondary E of which is con 5 nected in series in the main 0, which main connects to the middle point between the coils cl, (Z of the transformer I). Between the mains a, b is connects l. a transformer K supplying the lamps L with single phase current, while connected. across all three oi the mains is a separate transformer N supplying an induction motor M having one of its coils reversed, as described in my Patents Nos. 533,245 and 533,378 of January 29, 1895 For the purpose of obtaining the voltage "rem the motor generator I in quadrature to that supplied from the main armature A, the connections of the collecting rings of the motor generator are arranged so that the curno rent lea 1s ta 90 iii-0111 those to winch the ('UEI'Q 1/ 3911 from points 1%?(1 ion. with said 111513118, 1m 570 111 the 51mg 1 were 1 from pan" i he collectir 00 trio 1n (1. prinmry es com'lcqjrtcd r- I 00115.

. m Q r 11, i z. 6 a V XL 0 0 9 T Q in synchm. puma mov a t'ted hues made to suitable mi.

main driving however, t staiilon, the m comm-"cm 1125i Lc'brical connections went terminals of said bemves fed b said ans sonv p nmns, an

d rect-c u third 1 ed curngnt 0 i of sand cur i0! 1 *een the 1 vez mi tions 1 1 lt'LChihG 1 @113 pa ot h er connect-1.01 g and a :1- E ment a, motel 5 be Led a nd. mav be .fl'mn Jean. to i f machine as of any 51.11 11 20 mains SL .L d9 not and the field of uverter rot ale arm herefrol'n, & e qonnecixeg'; SK'TOSS said rimmfy con- (:urrent-tz'anssaid ch n alternating-curmg L 1011 of am 'J'h its 1' ads nat leads eraend. devn w nner W1 machine. combl D a. transf 1" 00 'c 1 The t generator se-chmminv (1 across said 10 mu cmn'mctions bet-Ween i1 plum- 06 and the secondary of said.

I. have hereunto devi I w mess whereof 2nd (13 Mm'ch, 15:395.

I-IAYLES P. STLHJMETZ.

ULL, ACDONALD.

enemtor What 1 sing med eh 1h Se 1 .110 thereby armor run ircm ngle plied .111 g nerzz' 

